Pull-Buoy Multi-Domes, Set of 6 Incredibly versatile multi-domes are 9 in dia x 5 in H fillable domes Horizontal slots and center holes allows them to become standards for dozens of games and activities Ideal for use as boundary markers, stepping stones, targets and so much more Made of super tough, light-weight ABS plastic that can be filled with sand when additional weight is required Multi-domes take domes to the next level, to provide you with an even more versatile array of uses